EP 0718647 B1 20020502 - Single mode optical fiber
Title (en)
Single mode optical fiber
Title (de)
Optische Einmodenfaser
Title (fr)
Fibre optique monomode
Publication
Application
Priority
FR 9415554 A 19941223
Abstract (en)
[origin: US5703986A] PCT No. PCT/FR95/01711 Sec. 371 Date Aug. 2, 1996 Sec. 102(e) Date Aug. 2, 1996 PCT Filed Dec. 21, 1995 PCT Pub. No. WO96/20420 PCT Pub. Date Jul. 4, 1996The present invention concerns a monomode optical fiber comprising an optical core for guiding the majority of light waves, surrounded by an optical sheath, the difference between the maximum refraction coefficient of the core and that of the optical sheath being indicated as DELTA n and the radius of the core being indicated as a, characterized in that: a epsilon [0.6ac:1.1ac], ac being provided, in mu m, by the formula: <IMAGE> where k=2 pi / lambda , lambda being (in mu m) the wavelength of the transmission, and where ng is the coefficient of said optical sheath, equal within 10-3 to that of pure silica, DELTA n is greater than or equal to 0.01, and in that, phi being the diameter of said optical sheath, in mu m: phi epsilon [ phi min:100], phi min being provided, in mu m, by the formula: phi min = 125 x +TR <IMAGE> where <IMAGE>
IPC 1-7
IPC 8 full level
G02B 6/028 (2006.01); G02B 6/02 (2006.01)
CPC (source: EP KR US)
G02B 6/02 (2013.01 - EP KR US); G02B 6/02028 (2013.01 - EP US); G02B 6/02395 (2013.01 - EP US); G02B 6/0281 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK FR GB IT NL
DOCDB simple family (publication)
US 5703986 A 19971230; BR 9506929 A 19970909; CN 1076102 C 20011212; CN 1141676 A 19970129; DE 69526565 D1 20020606; DE 69526565 T2 20021219; EP 0718647 A1 19960626; EP 0718647 B1 20020502; FI 963241 A0 19960819; FI 963241 A 19961004; FR 2728692 A1 19960628; FR 2728692 B1 19970131; JP H09509765 A 19970930; KR 970701359 A 19970317; RU 2153690 C2 20000727; WO 9620420 A1 19960704
DOCDB simple family (application)
US 68737096 A 19960802; BR 9506929 A 19951221; CN 95191772 A 19951221; DE 69526565 T 19951221; EP 95402906 A 19951221; FI 963241 A 19960819; FR 9415554 A 19941223; FR 9501711 W 19951221; JP 52025296 A 19951221; KR 19960704605 A 19960822; RU 96119249 A 19951221